From Exotek Racing:
New multi adjustable upper arm set for the Associated F1! These heavy duty CNC machined arm sets allows you to make quick and precise camber and caster adjustments on the fly. Want to try a little more camber or a little less caster? Now you can make changes on the track without having to disassemble the front end of the car- in fact you won’t even need to remove the body! Spend more time track testing and less time bench warming.

The arm set is precision machined for the smoothest arm movement and more durable than stock to better absorb hard impacts and remain tweak free.